D-Link DGS-3100 User Manual page 118

5. The second step on Security > 802.1X > 802.1X Setting page will be configuration of the required ports as 'MAC
Based' authentication (opposite to 'Port Based' authentication)
6. The last step on Security > 802.1X > 802.1X Setting page should be setting the port control to 'Auto', this will
complete the setting of MAC Authentication for the required ports.
DGS-3100 Series Gigabit Stackable Managed Switch User Manual
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